11912641 has 6 divisors (see below), whose sum is σ = 12899670. Its totient is φ = 10996128.

The previous prime is 11912633. The next prime is 11912669. The reversal of 11912641 is 14621911.

11912641 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 883600 + 11029041 = 940^2 + 3321^2 .

It is not a de Polignac number, because 11912641 - 2³ = 11912633 is a prime.

It is a super-2 number, since 2×11912641² = 283822031189762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11912941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35076 + ... + 35413.

It is an arithmetic number, because the mean of its divisors is an integer number (2149945).

Almost surely, 2^11912641 is an apocalyptic number.

It is an amenable number.

11912641 is a deficient number, since it is larger than the sum of its proper divisors (987029).

11912641 is an equidigital number, since it uses as much as digits as its factorization.

11912641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70515 (or 70502 counting only the distinct ones).

The product of its digits is 432, while the sum is 25.

The square root of 11912641 is about 3451.4693972278. The cubic root of 11912641 is about 228.3859332647.

The spelling of 11912641 in words is "eleven million, nine hundred twelve thousand, six hundred forty-one".